package cn.tedu.ivos.user.service.impl;

import cn.tedu.ivos.base.exception.ServiceException;
import cn.tedu.ivos.base.response.StatusCode;
import cn.tedu.ivos.base.util.PasswordUtil;
import cn.tedu.ivos.user.mapper.UserMapper;
import cn.tedu.ivos.user.pojo.dto.UserLoginParam;
import cn.tedu.ivos.user.pojo.dto.UserQuery;
import cn.tedu.ivos.user.pojo.dto.UserSaveParam;
import cn.tedu.ivos.user.pojo.entity.User;
import cn.tedu.ivos.user.pojo.vo.UserVO;
import cn.tedu.ivos.user.service.UserService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Date;
import java.util.List;

@Slf4j
@Service
public class UserServiceImpl implements UserService{
	@Autowired
	UserMapper userMapper;
	
	@Override
	public UserVO login(UserLoginParam userLoginParam) {
		log.debug("用户登录业务,参数={}",userLoginParam);
		UserVO userVO = userMapper.selectByUsername(userLoginParam.getUsername());
        /* 如果业务层逻辑执行时遇到了问题,不能直接返回结果给前端
        而是要抛出业务层异常,让全局异常处理器来处理
        一旦抛出异常,结果是由全局异常处理器来返回给前端的,就不走controller了*/
		if(userVO == null){
			throw new ServiceException(StatusCode.USERNAME_ERROR);
		}
		if(!userVO.getPassword().equals(userLoginParam.getPassword())){
			throw new ServiceException(StatusCode.PASSWORD_ERROR);
		}
		//只有没有遇到上方的两个异常,才会执行下面的代码,将查出来的userVO返回给controller!
		log.debug("用户登录业务查询结果={}",userVO);
		return userVO;
	}
	
	@Override
	public List<UserVO> selectUser(UserQuery userQuery) {
		log.debug("查询用户业务,参数={}",userQuery);
		List<UserVO> list = userMapper.selectUser(userQuery);
		return list;
	}
	
	@Override
	public void saveUser(UserSaveParam userSaveParam) {
		log.debug("保存用户业务,参数={}",userSaveParam);
		User user = new User();
		BeanUtils.copyProperties(userSaveParam,user);
		if(user.getId() == null){//新增
			user.setPassword("123456");
			user.setCreateTime(new Date());
			userMapper.insert(user);
		}else{//更新
			user.setUpdateTime(new Date());
			userMapper.update(user);
		}
	}
	
	@Override
	public void resetPassword(Long userId) {
		log.debug("重置密码业务,参数={}",userId);
		User user = new User();
		user.setId(userId);
//		user.setPassword("root");
		user.setPassword(PasswordUtil.generateRandomPassword(6));
		user.setUpdateTime(new Date());
		userMapper.update(user);
	}
	@Override
	public void updateStatus(Long userId, String status) {
		log.debug("修改用户状态业务,参数={},{}",userId,status);
		User user = new User();
		user.setId(userId);
		user.setStatus(status);
		user.setUpdateTime(new Date());
		userMapper.update(user);
	}
	
	@Override
	public void deleteUser(Long userId) {
		log.debug("删除用户业务,参数={}",userId);
		userMapper.deleteById(userId);
	}
	
}
